Ardini, DitaEfendi, RustamBustami2014-03-252014-03-252014-03-25Rangga Dwijunanda Putrahttp://repository.unri.ac.id/xmlui/handle/123456789/5849This article discusses two ratio estimators for the population mean in stratified adaptive cluster random sampling, the ratio estimator for the population mean and ratio estimator for the population mean, both proposed by Nipaporn Chutiman published in Thailand Statistician Journal [1]. All estimators are biased estimators. Then the mean square errors are determined for each estimator. Futhermore, the mean square error of each estimator will be compared to obtain an efficient ratio estimator. An numerical example is given at the end of the discussion.otherratio estimatorstratified adaptive cluster random samplingbiasedmean square errorOther